Fire alarm



Sept. 8, 1925. Q v 1,552,931

s. KARASHIK FIRE ALARM I Filed April 11, 1923 IN VENTOR $.Karashik ATTORNEY Eli Patented Sept. 8, 1925.

SAMUEL KARASHIK, OF BROOKLYN, NEW YORK.

FIRE ALARM.

Application filed April 11, 1923. Serial No. 631,481.

To all whom it may concern:

Be it known that I, SAMUEL KARAsriix, a citizen of Russia, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Fire Alarms, of which the following is a specification.

This invention relates to fire alarms, and the main object is to provide a device by which a phonograph is converted into means whereby an audible alarm is transmitted thru a telephone set at the moment when a cord or the like is parted or consumed by flames.

Another object is to provide an attachment for a phonograph, which, when connected to the hook of a telephone set, will simultaneously lift the receiver hook, start the phonograph disc rotating, and lower the tone arm of the phonograph to the playing position, when a cord secured to said attachment is broken.

Still another object is to provide a phonograph with a fire alarm attachment, from which said attachment may be readily disconnected when not in use and just as easily set for alarm.

These and other objects will'become apparent in the description below, in which characters of reference refer to like-named parts in the drawing.

Referring briefly to the drawing, Figure 1 is a top plan view of a phonograph mechanism showing the fire alarm attachment mounted in place in the set position.

Figure 2 is an enlarged top plan view of the fire alarm attachment per se.

Figure 3 is a side elevational view of Figure 2, the springs being omitted from this view for the sake of clarity.

Referring in detail to the drawing, the numeral 1 indicates the side walls of a phonograph cabinet, and the numerals 2 and 3 indicate the front and rear walls, respec tively, A turntable is mounted on a spindle 4; which passes thru the floor 5 of the cabinet beneath which the usual spring motor (not shown) is attached. A disc 6 rests upon said turntable. The tone arm 7 is trunnioned at the rear of the floor 5 and extends over the playing disc in the usual manner.

In one of the corners formed by the rear wall 3 and the side wall 1, a base plate. 8 is seated on the floor 5, and has holes 9 therein thru which screws 10 pass, the latter securing the base plate in place in the floor 5. One of the corners of said base plate is cut away curvedly, said cutaway portion lying adjacent the periphery 11 of the. turntable. A lever 12 is pivoted intermediate its length on a pin 13, the latter being located in the region of the cut away portion of the base plate. An angular extension 14: of said lever is adapted to contact with the peripheryof the turntable and serves as a stop brake when actuated. A substantially circular plate 15 is rigidly mounted on the base 8 adjacent the lever 12 and has a small stud 16 secured thereon upon which an angular member having a long arm 17 and a short arm 18, is pivoted. The short arm is pivotally coupled to lever 12 by a connectto the lever 12 at one side of the pivot, is

used to pull the extension 1 1 of said lever 12 away from, and clear of, the periphery 11 of the turntable. The end of lever 12 opposite to the extension 14 has a coil spring 25 attached thereto which is of shorter length than the spring 23. The free end of said spring has a flexible andnon-inflammable wire 26 attached thereto, said wire passing around any number of pulleys 27 consistent with the direction of travel desired. A telephone set 28 is used with the device, and is placed at some convenient location, preferably in close proximity to the phonograph cabinet. The hook 28 upon which the receiver 30 of the telephone hangs suspended, has an extending arm 29. The flexible wire passes around a roller 31 rotatably mounted on the base 32 of the telephone and has its end connected to the arm 39, which it is adapted to pull downwardly. A cord 33 composed of a material readily consumed by fire, is joined to the flexible .wire 26. Said inflammable cord is suspended thru eyelets (not shown) in any number of rooms or chambers, the spring serving as a means for tautening the same.

The tone arm 7 is provided with a roject-ing lug 3 1 which is adapted to partially rotate a hub 36 thru the medium of a leg 35, the latter lying in the path of the lug 34 when said tone arm 7 is rotated. A longer leg 37 radiates tangentially from the opposite side of the hub and is adapted to contact with the periphery ll of the turntable when the tone arm has reached the playing center of the disc. Said lug 37 contacts with the rib of the turntable before the tangent is reached, thus serving as a bracket. A catch rod 38 is rigidly fixed to a stud 39 which is rotably mounted on the base 8, and is adapted to lock the lever 12 out of engagement with the periphery of the turntable when said catch rod is rotated into the position shown in Figure 2. A visible alarm signal may be provided by mounting an electrical filament lamp 40 at a convenient position on the cabinet. Said lamp is connected to the lever 12 by a wire 41. The lever when rotated is adapted to pull the member ll to light the lamp. When resetting the device, the lamp may be extinguished by actuating the switch 42.

In setting the attachment for giving an alarm, the tone arm is shifted into the fork 20 of the long arm 17. The lever 12 will then be in a position to have its extension 14 in contact with the periphery 11 of the turntable, which it retains stationary. The hub 36 of the emergency stop is also rotated until the leg 37 is clear of the periphery of the turntable. The inflan'imable cord passes thru any number of rooms which it is de sired to protect with the [ire alarm. The device functions by having the cord 33 burned and broken at any one point. As this occurs, the spring 25 loses its tension and permits the larger spring 23 to rotate the lever 12 to pull the extension 14 out of contact with the periphery 11 of the turntable. The flexible wire 26 is simultaneously pulled and, being attached to the hook extension 29, will rotate said hook to lift the telephone receiver, thereby closing the the proper authorities. arrives at the so-called end of the disc, the

speaking circuit. The disc 6 upon which sound waves relating to fire and the location of the premises are impressed, simultaneously begins rotating, and the tone arm 7, being in contact therewith, will transmit said sound waves thru the telephone transmitter, from which they may be relayed to As the tone arm lug 34 by engaging the leg v35 will rotate the hub 36 and cause the longer leg 37 to contact with the periphery of the turntable, thereby stopping rotation of the same.

I claim In combination with the phonograph and telephone set an attachment adapted to be secured to the phonograph cabinet and comprising a base plate, a lever pivoted thereon having an extension at one end, said extension being adapted to normally contact with the periphery of the turntable, a coil spring secured to one end of the lever, an inflammable cord connected to said spring, said spring and cord being adapted to retain the lever extension in contacting position with the turntable, a. second spring connected to said lever being adapted to rotate said lever when the cord has been broken, a wire connecting the receiver hook of the telephone set with the inflammable cord, said cord when broken being adapted to lift the receiver hook, an angular member having a long bifurcated arm, the bifurcated end of said arm engageable with the tone arm of the phonograph for supporting the latter, the opposite arm of said angular member being connected to the lever, said lever when rotated being adapted to arcuately rotate the bifurcated arm out of engagement with the tone arm, and means for stopping rotation of the turntable when the tone arm is moved toward the center of the disc.

' In testimony whereof I affix my signature.

SAMUEL KARASHIK. 

